Implementation of an Ethernet Local Area Network board for the MacIntosh II system Public Deposited

http://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/9c67wr52f

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  • The purpose of this study was to design and to implement a practical Ethernet Local Area Network (LAN) board for the Macintosh II computer system. A survey of the literature provided a general definition of LANs, a reference model for network layers, specifications for an Ethernet LAN, and information on the Macintosh II system architecture. Detailed information was provided for the design of the hardware and problems of programming the board. The design of the board conforms to the NuBus specification used in the MacIntosh II. The board consists of three general sections: (1) the NuBus interface block, containing a configuration Read Only Memory (ROM) for the Macintosh II; (2) the LAN coprocessor and its chip set; and (3) shared memory accessible by both the Macintosh II and the coprocessor. The major design concern was the logic block for the arbitration of shared memory access between the Macintosh II and the coprocessor. Most of the control logic block consists of Programmable Array Logic (PAL) chips, giving the system flexibility and allowing for a reduction in the number of components used on the board.
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  • description.provenance : Submitted by Kaylee Patterson (kdpscanner@gmail.com) on 2013-05-17T19:05:52Z No. of bitstreams: 1 YooTaeOn1989.pdf: 522554 bytes, checksum: 9f711702ad84eb93e1db9ab0c9770f60 (MD5)
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  • description.provenance : Made available in DSpace on 2013-06-28T21:39:47Z (GMT). No. of bitstreams: 1 YooTaeOn1989.pdf: 522554 bytes, checksum: 9f711702ad84eb93e1db9ab0c9770f60 (MD5) Previous issue date: 1988-05-13

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